package cn.mldn.eshop.product.service;


import cn.mldn.eshop.product.vo.ProductSpecification;

public interface ProductSpecificationService {
	
	public void add(ProductSpecification productSpecification, String operationType);
	
	public void update(ProductSpecification productSpecification, String operationType);
	
	public void delete(Long id, String operationType);
	
	public ProductSpecification findById(Long id);

	public ProductSpecification findByProductId(Long productId);
	
}
